Completely revised in Dec. 2024: improved questions, layout, and answer sheet. Further differentiation. Please ensure you can access the video before you get this resource.
The film covers: basic terrestrial food chains, population increase and decrease, interdependency; production, consumption. Pyramids of number. Competition. Changes between trophic levels. Food webs. Windermere’s arctic char: ecological surveying, their place in the food chain. Zooplankton sampling. Algae and sewage run-off. Abiotic factors measured. Pesticides and bioaccumulation. Find the film by searching YouTube’s Tangwaap channel for Scientific Eye: Food Chains. Many other channels also host the video.
13 questions for the 19-min film. Now differentiated THREE ways! All versions look similar, but “B” version has subtle clues, and “C” version asks pupils to circle the right answers from a choice of three, allowing pupils with literacy difficulties to access the work. Questions right up to the end, no slack time. Answer sheet. Very easy to mark. .doc & .pdf for all files. Two separate links to the film on all sheets.
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